Enuresis is involuntary urination while asleep after the age at which bladder control usually occurs. This should not even be considered a problem before the child is 3 or 4 years old, as children develop bladder control at different times. Normally by the age of 3 yrs 85% are dry by day and night barring an occasional accident.
Most enuresis is caused by a slow development of bladder control, just as some children are slower than other learning to read. Some anxiety, psychological upsets such as parental rows or a new baby can be implicated. It can also be an attention seeking ploy.
Other causes are:-
The causes of bed-wetting are not entirely known. It tends to run in families. Most children with primary enuresis have a close relative-a parent, aunt, or uncle-who also had the disorder. About 70% of children with two parents who wet the bed will also wet the bed. Sometimes bed-wetting can be caused by a serious medical problem like diabetes, sickle-cell anemia, or epilepsy. Snoring and episodes of interrupted breathing during sleep (sleep apnea) occasionally contribute to bed-wetting problems. Enlarged adenoids can cause these conditions. Other physiological problems, such as severe constipation, or spinal cord injury, can cause bed-wetting.